工程结构裂缝控制的综合方法-王铁梦

20005295CONSTRUCTIONTECHNOLOGY(,100088)[](),[];;;;;;[]TU74613[]A[]100228498(2000)0520005205ComprehensiveMethodforCracking-ControlinStructureWANGTie2meng(TheCentralResearchInstituteofBuildingandConstructionofMMI,Beijing100088)Abstract:Theproblemofcracks,whichiscausedinstructuresbydeformingeffect,suchashydrationheat,shrinkage,temperaturedifferenceofatmosphere,isveryimportantandcomplicated.Onthebasisofvastconstructionpracticeandtheexperiencesoncracktreatingandtheoreticalstudy,theauthorpresentedanewmethodnamedComprehensiveMethodforCracking2ControlofStructures,inwhichstructuralme2chanicsapproximatecalculationmethod,theinteractioncharacteristicofstructureandfoundation,thetechniqueofconstruction,theselectionofmaterial,andenvironmentalconditionsarecombined.Keywords:engineeringstructure;crack;control;structuraldesign;constructionmethods;material;envi2ronmentalcondition[]2000202221[](1931),(),,,,201900,:0138018221141,,,,,,,,,,,,,,,,,,2,,,,,(),:,,,,,;,,,,,,80%,,5,,21510-431510-4,610-4810-4,331131111(GBJ10-89),,,3055m(),2035m:,31112,,,,,,,,,,,,,,(),,,:,,,,;(30m),,,,36,45d;,,,,,,,,,,,,311133:(),()(),,,,:(),;,,,,,,,30%,011mm,,,[1],[2]R3xmax=-EaT1-1chBL2H(t,S)(1):R3xmax=6ni=1$Ri=-a1-L6ni=11-1chBiL2$TiEi(t)Hi(t,Si)(2),:[Lmax]=2EHCXarcchûaTûûaTû-Ep(3)[L]=115EHCXarcchûaTûûaû-Ep(4)[Lmin]=1ö2[Lmax](5):T,,,,,H(t,S),(),1235-1;5-2;(),013015(),,018,,,,(:,,,,,6292CX[R](kNöm2)CZ(kNöm3)CX(kNöm3)CX(kNömm3)8015025040050080050001000014000350004100075000880001350008800001760000980024500287005250061600945006160001232000110-2310-2310-2610-2610-21010-2(60100150)10-2:CX()5m,()5m;,CX10010-215010-2Nömm3;,CX6010-215010-2Nömm3;,CX6010-2Nömm3;,,CX3010-2Nömm3;,45,50%,);T=T1+T2+T3(,);Ep,,,01510-401810-4;,,110-411510-4;,,210-4;(),20%40%013%015%H();E;CX;charcch;a;EpûaTû,EpûaTûEp=ûaTû,[L](3)(4)(5),,[L][Lmax][Lmin],[Lmax]=2[Lmin],(3)(4)(5),(),(),,aTCX0,L0,L0,,,(),,,:Df=27EHCXaTthB[L]2Dfmax=27EHCXaTthB[Lmax]2Dfmin=27EHCXaTthB[Lmin]2(6):7,7=FH(t),H(t)1;CX21L(%)0012013014015016017018019110FH(t)7=FH(t)1100130130180130124016013011801401301120120130106,CX100(300600mm115215m),,,(),31114,,();(),;,814mm,200mm,31115(),(C25C35),R60,,,,,,,,,,(),,(),,,,,,,,(),,,()()(),,(72000No.5:),,,,12()(),,;,,C25C35,50,25mm,C2035mm,C35,15mm;;;31231211,,,,,31212,:(1),,1,,,1,,(2),,111(3)(),(),,(4)23,(),;,,,(5),,(6),,,,,,(13öd),,(7),313,,,,,,,,,,,,,,,,,,,,20%25%(),20%;30%,45%,,,,,,,,;,,,,,,(Ê),(15%20%),(),,,,,,,,829314(),,,,,(),(),,,(),(),,4,,,,,011mm,012mm,,,014mm;013mm;0115mm,,,C50,,,,,,,3,()012mm,,,hH:h011H;011Hh015H;015Hh110H;h=H,,1,6,12(),,,,,,,:2050cm,0105mm,;12m011012mm,;510m015110mm,,,,,;,,,,:[1].[M].:,1989.[2].[M].:,1997.[3]ControlofCrackinginConcreteStructures.ACI224R290.[4]WangTie2Meng,QiuShi2Wu.AStudyofSinkingDeepShaftsUsingArtificialFreezingDesignofShaftLiningsandmethodofPreventingSeepage[C].TheThirdInternationalSymposiumOnGROUNDFREEZINGHanoverU.S.A,1981.[5]WangTie2Meng,QingQuan,LiYong2lu.AnExpertSystemForDiagnosingRepairingCracks[C].SixthInternational.ConferencecomputingInCivilEngineeringATLANTAU.S.A,1989.[6]WangTie2Meng.InteractionofSoilandFoundationforCrack2inginFoundationEngineering[C].InternationalSymposiumonSoilImprovementandPileFoundationProceedingsNanjing,China,1992.92000No.5: